CN117377714A - Thermoplastic molding compositions having high temperature resistance - Google Patents
Thermoplastic molding compositions having high temperature resistance Download PDFInfo
- Publication number
- CN117377714A CN117377714A CN202280037693.4A CN202280037693A CN117377714A CN 117377714 A CN117377714 A CN 117377714A CN 202280037693 A CN202280037693 A CN 202280037693A CN 117377714 A CN117377714 A CN 117377714A
- Authority
- CN
- China
- Prior art keywords
- component
- thermoplastic molding
- reaction mixture
- sulfone
- molding composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000203 mixture Substances 0.000 title claims abstract description 130
- 238000009757 thermoplastic moulding Methods 0.000 title claims abstract description 62
- 229920000642 polymer Polymers 0.000 claims abstract description 89
- 238000000034 method Methods 0.000 claims abstract description 59
- 229920013654 poly(arylene sulfone) Polymers 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000011541 reaction mixture Substances 0.000 claims description 83
- 125000003118 aryl group Chemical group 0.000 claims description 69
- -1 carbonate compound Chemical class 0.000 claims description 46
- 150000003457 sulfones Chemical class 0.000 claims description 39
- 229920000110 poly(aryl ether sulfone) Polymers 0.000 claims description 35
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 32
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 31
- 150000001875 compounds Chemical class 0.000 claims description 25
- 239000002798 polar solvent Substances 0.000 claims description 22
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 19
- GPAPPPVRLPGFEQ-UHFFFAOYSA-N 4,4'-dichlorodiphenyl sulfone Chemical compound C1=CC(Cl)=CC=C1S(=O)(=O)C1=CC=C(Cl)C=C1 GPAPPPVRLPGFEQ-UHFFFAOYSA-N 0.000 claims description 17
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 16
- 125000002091 cationic group Chemical group 0.000 claims description 11
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 9
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 9
- 125000001174 sulfone group Chemical group 0.000 claims description 9
- PLVUIVUKKJTSDM-UHFFFAOYSA-N 1-fluoro-4-(4-fluorophenyl)sulfonylbenzene Chemical compound C1=CC(F)=CC=C1S(=O)(=O)C1=CC=C(F)C=C1 PLVUIVUKKJTSDM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims description 3
- ZFPGARUNNKGOBB-UHFFFAOYSA-N 1-Ethyl-2-pyrrolidinone Chemical compound CCN1CCCC1=O ZFPGARUNNKGOBB-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- AJDTZVRPEPFODZ-PAMPIZDHSA-J [Sn+4].[O-]C(=O)\C=C/C([O-])=O.[O-]C(=O)\C=C/C([O-])=O Chemical compound [Sn+4].[O-]C(=O)\C=C/C([O-])=O.[O-]C(=O)\C=C/C([O-])=O AJDTZVRPEPFODZ-PAMPIZDHSA-J 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 229910052626 biotite Inorganic materials 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 229910001919 chlorite Inorganic materials 0.000 claims description 2
- 229910052619 chlorite group Inorganic materials 0.000 claims description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims description 2
- 239000012765 fibrous filler Substances 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 2
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 2
- 229910052628 phlogopite Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052627 muscovite Inorganic materials 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 42
- 239000000047 product Substances 0.000 description 32
- 239000002253 acid Substances 0.000 description 22
- 238000006243 chemical reaction Methods 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 229910052757 nitrogen Inorganic materials 0.000 description 21
- 238000006068 polycondensation reaction Methods 0.000 description 18
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 17
- 229920000491 Polyphenylsulfone Polymers 0.000 description 15
- 229920006393 polyether sulfone Polymers 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 150000001768 cations Chemical class 0.000 description 12
- 238000001914 filtration Methods 0.000 description 11
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- 238000005227 gel permeation chromatography Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000005160 1H NMR spectroscopy Methods 0.000 description 8
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 8
- 150000004820 halides Chemical class 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 239000000049 pigment Substances 0.000 description 8
- 229920002492 poly(sulfone) Polymers 0.000 description 8
- PZDAAZQDQJGXSW-UHFFFAOYSA-N 1-fluoro-4-(4-fluorophenyl)benzene Chemical group C1=CC(F)=CC=C1C1=CC=C(F)C=C1 PZDAAZQDQJGXSW-UHFFFAOYSA-N 0.000 description 7
- KCIDZIIHRGYJAE-YGFYJFDDSA-L dipotassium;[(2r,3r,4s,5r,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] phosphate Chemical class [K+].[K+].OC[C@H]1O[C@H](OP([O-])([O-])=O)[C@H](O)[C@@H](O)[C@H]1O KCIDZIIHRGYJAE-YGFYJFDDSA-L 0.000 description 7
- 230000009477 glass transition Effects 0.000 description 7
- 239000012299 nitrogen atmosphere Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 238000006277 sulfonation reaction Methods 0.000 description 6
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 4
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000006482 condensation reaction Methods 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000007522 mineralic acids Chemical class 0.000 description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 4
- 101100062433 Arabidopsis thaliana DHDPS1 gene Proteins 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 238000003918 potentiometric titration Methods 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 239000012963 UV stabilizer Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001348 alkyl chlorides Chemical class 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000005595 deprotonation Effects 0.000 description 2
- 238000010537 deprotonation reaction Methods 0.000 description 2
- KKEBUZUONXHUNE-UHFFFAOYSA-L disodium;2-chloro-5-(4-chloro-3-sulfonatophenyl)sulfonylbenzenesulfonate Chemical compound [Na+].[Na+].C1=C(Cl)C(S(=O)(=O)[O-])=CC(S(=O)(=O)C=2C=C(C(Cl)=CC=2)S([O-])(=O)=O)=C1 KKEBUZUONXHUNE-UHFFFAOYSA-L 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 239000012760 heat stabilizer Substances 0.000 description 2
- 229920006258 high performance thermoplastic Polymers 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229920000090 poly(aryl ether) Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- QBNABJXQGRVIRA-UHFFFAOYSA-N 1-bromo-4-(4-bromophenyl)sulfonylbenzene Chemical compound C1=CC(Br)=CC=C1S(=O)(=O)C1=CC=C(Br)C=C1 QBNABJXQGRVIRA-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004609 Impact Modifier Substances 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- PRKQVKDSMLBJBJ-UHFFFAOYSA-N ammonium carbonate Chemical class N.N.OC(O)=O PRKQVKDSMLBJBJ-UHFFFAOYSA-N 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000011162 ammonium carbonates Nutrition 0.000 description 1
- 239000000010 aprotic solvent Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004415 thermoplastic moulding composition Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
- C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
- C08G65/4012—Other compound (II) containing a ketone group, e.g. X-Ar-C(=O)-Ar-X for polyetherketones
- C08G65/4056—(I) or (II) containing sulfur
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/48—Polymers modified by chemical after-treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/20—Polysulfones
- C08G75/23—Polyethersulfones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention relates to a thermoplastic molding composition comprising as components at least one non-sulfonated poly (arylene sulfone) polymer (P), at least one sulfonated poly (arylene sulfone) polymer (sP) and at least one fibrous and/or particulate filler. Furthermore, the invention relates to a process for the manufacture of molded articles using the thermoplastic molding composition and to molded articles obtainable by the process.
Description
Description
The invention relates to a thermoplastic molding composition comprising as components at least one non-sulfonated poly (arylene sulfone) polymer (P), at least one sulfonated poly (arylene sulfone) polymer (sP) and at least one fibrous and/or particulate filler. Furthermore, the invention relates to a process for the manufacture of molded articles using the thermoplastic molding composition and to molded articles obtainable by the process.
Polyarylethersulfone polymers are high performance thermoplastics because of their high heat resistance, good mechanical properties and inherent flame retardancy. (E.M. Koch, H. -M.Walter, kunststoffe 80 (1990) 1146E.Kunststoffe 80,(1990)1149,N.Inchaurondo-Nehm,Kunststoffe98,(2008)190)。
The polyarylethersulfone polymer may be formed, but is not limited to, by a hydroxide process, wherein a salt is first formed from the dihydroxy component and the hydroxide, or by a carbonate process.
General information about the formation of poly (arylene ether sulfone) polymers by the hydroxide process is found, inter alia, in R.N. Johnson et al, J.Polym.Sci.A-1 5 (1967) 2375, and the carbonate process is described in J.E.McGrath et al, polymer 25 (1984) 1827.
Methods for forming polyarylethersulfone polymers from aromatic dihalides and aromatic bisphenols or their salts in aprotic solvents in the presence of one or more alkali metal or ammonium carbonates or bicarbonates are known to the person skilled in the art and are described, for example, in EP-A297 363 and EP-A135 130.
High performance thermoplastics such as polyarylethersulfone polymers are formed by polycondensation reactions typically carried out in polar aprotic solvents such as DMF (dimethylformamide), DMAc (dimethylacetamide), sulfolane, DMSO (dimethylsulfoxide) and NMP (N-methylpyrrolidone) at high reaction temperatures.
For challenging applications, the poly (arylene ether sulfone) polymer is reinforced with a fibrous or particulate filler, particularly glass fibers. This generally results in a significant increase in stiffness and strength, but the toughness of such thermoplastic compounds is significantly reduced due to the weak interaction of the fibrous or particulate filler with the polymer matrix. Several methods of functionalizing polyarylethersulfone polymers to better adhere to fibrous or particulate fillers are known in the art.
EP 257,676 A1 proposes the use of a polyarylethersulfone polymer having hydroxyl end groups as additives to improve the properties of a fiber-or filler-reinforced polyarylethersulfone polymer compound, whereas EP 855,430 A1 describes the use of a polyarylethersulfone polymer having carboxylic acid groups as compatibilizers between the polyarylethersulfone polymer and the fiber or particulate filler.
Due to the high glass transition temperature of polyarylethersulfone polymers, the temperature requirements during processing of such thermoplastic compounds are rather demanding. Moreover, they need to have excellent thermal stability during use of these products. There remains a need for thermoplastic molding compositions having improved mechanical properties and good processing stability and molded articles made from these thermoplastic molding compositions.
It is therefore an object of the present invention to provide thermoplastic molding compositions which do not retain the disadvantages of the prior art or are present only in attenuated form. The thermoplastic molding composition should be easy to produce. Furthermore, the thermoplastic molding composition should be suitable for the manufacture of molded articles.
This object is achieved by a thermoplastic molding composition comprising as components
(I) 25 to 95% by weight of at least one non-sulfonated polyarylethersulfone polymer (P);
(II) 1 to 10% by weight of at least one sulfonated poly (arylene sulfone) polymer (sP) having 1 to 7.5mol% of sulfonated repeat units comprising at least one-SO 3 A Y group, wherein Y is hydrogen or a cationic equivalent, based on the total amount of at least one sulfonated poly (arylene sulfone) polymer (sP) contained in the thermoplastic molding composition;
(III) 4 to 70% by weight of at least one fibrous and/or particulate filler, wherein the weight% value in each case is based on the total weight of the thermoplastic molding composition.
It has surprisingly been found that the thermoplastic molding compositions according to the invention exhibit high temperature resistance and good processability. In addition, molded articles produced from these thermoplastic molding compositions exhibit excellent heat stability, good mechanical properties, good melt stability and improved appearance after heat aging.
The present invention will be described in more detail below.
Component (I)
The thermoplastic molding composition comprises as component (I) at least one non-sulfonated polyarylethersulfone polymer (P). In this case, the term "at least one non-sulfonated aromatic dihalogen sulfone polymer (P)" and "component (I)" are synonymously used and thus have the same meaning.
The thermoplastic molding composition comprises from 25 wt.% to 95 wt.% of component (I), based on the total weight of the thermoplastic molding composition.
In this case, the term "at least one non-sulfonated polyarylethersulfone polymer (P)" is understood to mean exactly one non-sulfonated polyarylethersulfone polymer (P) and also a mixture of two or more non-sulfonated polyarylethersulfone polymers (P).
In the context of the present invention, "non-sulfonated" means that the non-sulfonated poly (arylene ether sulfone) polymer (P) does not include groups resulting from sulfonation of aromatic dihalogenated sulfones contained in the non-sulfonated poly (arylene ether sulfone) polymer (P). Methods of sulfonation are known to those skilled in the art. In particular, in the context of the present invention, "non-sulfonated" means that the non-sulfonated polyarylethersulfone polymer (P) does not include any-SO in combination with one cationic equivalent 2 X groups, wherein X is selected from OH and O - 。
In the context of the present invention, "one cation equivalent" refers to one charge equivalent of one single positively charged cation or one cation having two or more positive charges, e.g., li + 、Na + 、K + 、Mg 2+ 、Ca 2+ Or NH 4 + 。
In a preferred embodiment, the thermoplastic molding composition comprises from 30 to 90% by weight, more preferably from 35 to 85% by weight, most preferably from 40 to 80% by weight, of component (I), based in each case on the total weight of the thermoplastic molding composition.
The preparation of component (I) is known to the person skilled in the art. In a preferred embodiment, component (I) is prepared by reacting a reaction mixture (R GI ) The reaction mixture comprising as components (IA 1) at least one non-sulfonated aromatic dihalogen sulfone, (IB 1) at least one aromatic dihydroxy compound, (IC) at least one carbonate compound, and (ID) at least one aprotic polar solvent.
Accordingly, a further object of the present invention is a thermoplastic molding composition in which component (I) is prepared by reaction of a reaction mixture (R GI ) Is prepared by the method of the step (a), the reaction mixture comprises as components
(IA 1) at least one non-sulfonated aromatic dihalogen sulfone;
(IB 1) at least one aromatic dihydroxy compound;
(IC) at least one carbonate compound;
(ID) at least one aprotic polar solvent.
GI Reaction mixture (R)
Preferably, the preparation of the non-sulfonated poly (arylene sulfone) polymer (P) comprises as step I) converting the reaction mixture (R) comprising the above components (IA 1), (IB 1), (IC) and (ID) GI )。
Components (IA 1) and (IB 1) participate in the polycondensation reaction.
Component (ID) acts as a solvent and component (IC) acts as a base to deprotonate component (IB 1) during the condensation reaction.
Reaction mixture (R) GI ) It is understood to mean the mixtures used in the process for preparing the non-sulfonated polyarylethersulfone polymers (P). In this case, the reaction mixture (R GI ) All the details given thus relate to the mixture present before polycondensation. Polycondensation in the reaction mixture (R GI ) The polycondensation reaction of the components (IA 1) and (IB 1) is carried out in the process of obtaining the target product of the non-sulfonated polyarylethersulfone polymer (P). Obtained after polycondensation, including non-sulphonic acidsMixtures of the end products of the poly (arylene ether sulfone) polymers (P) are also referred to as product mixtures (P) GI ). In addition, the product mixture (P GI ) Typically comprising at least one aprotic polar solvent (component (ID)) and a halide. In the reaction mixture (R GI ) Forms halides during the conversion of (a) to (b). First, during the conversion process, component (IC) reacts with component (IB 1) to deprotonate component (IB 1). The deprotonated component (IB 1) then reacts with component (IA 1), wherein the halide is formed. This process is known to those skilled in the art.
Reaction mixture (R) GI ) The components of (a) are preferably reacted simultaneously. The components may be mixed and subsequently reacted in an upstream step. The components may also be fed into a reactor where they are mixed and then reacted.
In the process according to the invention, preferably in step I), the reaction mixture (R GI ) The components of (a) are preferably reacted simultaneously. The reaction is preferably carried out in one stage. This means that the deprotonation of component (IB 1) and the condensation reaction between components (IA 1) and (IB 1) takes place in a single reaction stage without isolation of intermediate products, such as the deprotonated species of component (IB 1).
The process according to step I) is preferably carried out according to the so-called "carbonate process". The process is preferably not carried out according to the so-called "hydroxide process". This means that the process according to the invention is not carried out in two stages for separating the phenoxide anions. Thus, in a preferred embodiment, the reaction mixture (R GI ) Substantially free of sodium hydroxide and potassium hydroxide. More preferably, the reaction mixture (R GI ) Substantially free of alkali metal hydroxides and alkaline earth metal hydroxides.
In this case, the term "substantially free" is understood to mean that the reaction mixture (R GI ) Is used as a reaction mixture (R) GI ) Including less than 100ppm, preferably less than 50ppm, of sodium hydroxide and potassium hydroxide, preferably alkali metal hydroxides and alkaline earth metal hydroxides.
Furthermore, it is preferred that the reaction mixture (R GI ) Toluene or monochlorobenzene is not included. In particular, preference is given to reaction mixtures (R GI ) Excluding any material that forms an azeotrope with water.
The proportions of component (IA 1) and component (IB 1) result in principle from the stoichiometry of the polycondensation reaction which takes place with the theoretical elimination of hydrogen chloride and is established by the person skilled in the art in a known manner.
Preferably, the ratio of halogen end groups derived from component (IA 1) to phenol end groups derived from component (IB 1) is regulated by controlled establishment of an excess of component (IB 1) relative to component (IA 1) as starting compound.
More preferably, the molar ratio of component (IB 1) to component (IA 1) is from 0.96 to 1.08, especially from 0.98 to 1.06, most preferably from 0.985 to 1.05.
Preferably, the conversion in the polycondensation reaction is at least 0.9.
Process step I) for preparing the non-sulfonated polyarylethersulfone polymers (P) is typically carried out under so-called "carbonate process" conditions. This means that the reaction mixture (R GI ) The reaction is carried out under so-called "carbonate process" conditions. The polycondensation reaction is generally carried out at a temperature in the range from 80℃to 250℃and preferably in the range from 100℃to 220 ℃. The upper limit of this temperature is determined by the boiling point of the at least one aprotic polar solvent (component (ID)) at standard pressure (1013.25 mbar). The reaction is usually carried out under standard pressure. The reaction is preferably carried out at time intervals in the range of 0.5 to 12 hours, in particular 1 to 10 hours.
Product mixture (P) GI ) In the process, the non-sulfonated poly (arylene sulfone) polymer (P) obtained in the process may be isolated, for example, by reacting the product mixture (P GI ) Precipitation in water or a mixture of water and other solvents. The precipitated non-sulfonated poly (arylene ether sulfone) polymer (P) may then be extracted with water and then dried. In one embodiment of the invention, the precipitate may also be absorbed in an acidic medium. Suitable acids are, for example, organic or inorganic acids, for example carboxylic acids such as acetic acid, propionic acid, succinic acid or citric acid, and inorganic acids such as hydrochloric acid, sulfuric acid or phosphoric acid.
The product mixture (P) may be filtered after step I) GI ). Thereby, the halide can be removed.
The invention therefore also provides a method, wherein the method further comprises the steps of
II) filtering the product mixture (P) obtained in step I) GI )。
In a preferred embodiment, the conversion with aliphatic organohalogen compounds is carried out after polycondensation. Thereby, the reactive hydroxyl groups are blocked and the polymer is further stabilized. The conversion with aliphatic organohalogen compounds can be carried out before or after filtration.
Preferred aliphatic organohalogen compounds are alkyl halides having a linear or branched alkyl radical having from 1 to 10 carbon atoms, in particular alkyl chlorides, in particular primary alkyl chlorides, particularly preferably methyl halides, in particular methyl chlorides.
The reaction with the aliphatic organohalogen compound is preferably carried out at a temperature of from 90℃to 160℃and in particular from 100℃to 150 ℃. The time can vary widely and is generally at least 5 minutes, in particular at least 15 minutes. The reaction time is preferably from 15 minutes to 8 hours, in particular from 30 minutes to 4 hours.
Various methods may be used to add the aliphatic organohalogen compound. Furthermore, the aliphatic organohalogen compound may be added in a stoichiometric or expressed excess, wherein the excess may be, for example, up to a 5-fold excess. In a preferred embodiment, the aliphatic organohalogen compound is added continuously, in particular by means of a gas stream.
Component (IA 1)
Reaction mixture (R) GI ) Comprising as component (IA 1) at least one non-sulphonated aromatic dihalogen sulphone.
In this case, the term "at least one non-sulfonated aromatic dihalogen sulfone" is understood to mean exactly one non-sulfonated aromatic dihalogen sulfone and also a mixture of two or more non-sulfonated aromatic dihalogen sulfones. In this case, the term "at least one non-sulfonated aromatic dihalogen sulfone" and "component (IA 1)" are used synonymously and thus have the same meaning.
The at least one non-sulphonated aromatic dihalogen sulphone (component (IA 1)) is preferably at least one non-sulphonated aromatic dihalogen diphenyl sulphone.
In the context of the present invention, "non-sulfonated" means that the aromatic dihalogenated sulfone does not include the groups resulting from sulfonation of the aromatic dihalogenated sulfone. Methods of sulfonation are known to those skilled in the art. In particular, in the context of the present invention, "non-sulphonated" means that the aromatic dihalogenated sulphones do not comprise any-SO in combination with one cationic equivalent 2 X groups, wherein X is selected from OH and O - 。
In the context of the present invention, "one cation equivalent" refers to one charge equivalent of one single positively charged cation or one cation having two or more positive charges, e.g., li + 、Na + 、K + 、Mg 2+ 、Ca 2+ Or NH 4 + 。
Component (IA 1) is preferably used as monomer. This means that the reaction mixture (R GI ) Component (IA 1) is included, preferably as a monomer rather than as a prepolymer.
The preferred non-sulfonated aromatic dihalogenated sulfones are non-sulfonated 4,4' -dihalogenated diphenyl sulfones. Particularly preferred are 4,4' -dichlorodiphenyl sulfone, 4' -difluorodiphenyl sulfone and/or 4,4' -dibromodiphenyl sulfone. 4,4' -dichlorodiphenyl sulfone and 4,4' -difluorodiphenyl sulfone are particularly preferred, while 4,4' -dichlorodiphenyl sulfone is most preferred.
Accordingly, another object of the present invention is also a process wherein component (IA 1) is selected from the group consisting of 4,4 '-dichlorodiphenyl sulfone and 4,4' -difluorodiphenyl sulfone.
Preferably, based on the reaction mixture (R GI ) Component (IA 1) comprises at least 50% by weight of at least one non-sulphonated aromatic dihalogen sulphone selected from 4,4 '-dichlorodiphenyl sulphone and 4,4' -difluorodiphenyl sulphone, based on the total weight of component (IA 1).
In a particularly preferred embodiment, the reaction mixture (R GI ) Component (IA 1) comprises at least 80 wt%, preferably at least 90 wt%, more preferably at least 98 wt% of at least one member selected from the group consisting of 4,4' -dichloro, based on the total weight of component (IA 1)Non-sulfonated aromatic dihalogenated sulfones of diphenyl sulfone and 4,4' -difluorodiphenyl sulfone.
In another particularly preferred embodiment, component (IA 1) consists essentially of at least one non-sulfonated aromatic dihalogen sulfone selected from the group consisting of 4,4 '-dichlorodiphenyl sulfone and 4,4' -difluorodiphenyl sulfone.
In another preferred embodiment, component (IA 1) consists of 4,4' -dichlorodiphenyl sulfone.
Component (IB 1)
Reaction mixture (R) GI ) Preferably at least one aromatic dihydroxy compound is included as component (IB 1). In this case, the term "at least one aromatic dihydroxy compound" is understood to mean exactly one aromatic dihydroxy compound and also a mixture of two or more aromatic dihydroxy compounds. Preferably, component (IB 1) is exactly one aromatic dihydroxy compound or exactly a mixture of two dihydroxy compounds. The most preferred component (IB 1) is exactly one aromatic dihydroxy compound.
In this case, the term "at least one aromatic dihydroxy compound" and "component (IB 1)" are used synonymously and thus have the same meaning.
The aromatic dihydroxy compound used is generally a compound having two phenolic hydroxyl groups. Due to the reaction mixture (R GI ) Comprising at least one carbonate compound, thus the reaction mixture (R GI ) The hydroxyl groups of component (IB 1) may be present in part in deprotonated form.
Component (IB 1) is preferably used as monomer. This means that the reaction mixture (R GI ) Component (IB 1) is included preferably as a monomer rather than as a prepolymer.
Suitable aromatic dihydroxy compounds are, for example, selected from the group consisting of 4,4' -dihydroxybiphenyl, 4' -dihydroxydiphenyl sulfone and bisphenol A (IUPAC name: 4,4' - (propane-2, 2-diyl) biphenol).
In one embodiment of the invention, the reaction mixture (R GI ) Does not include any bisphenol a. In another embodiment, the reaction mixture (R GI ) Does not include any hydroquinone.
Based on the reaction mixture (R GI ) Component (IB 1) preferably comprises at least 50 wt.%, more preferably at least 80 wt.%, particularly preferably at least 90 wt.%, in particular at least 98 wt.% of an aromatic dihydroxy compound selected from the group consisting of 4,4 '-dihydroxybiphenyl, 4' -dihydroxydiphenyl sulfone and bisphenol a, based on the total weight of component (IB 1). 4,4' -dihydroxybiphenyl and 4,4' -dihydroxydiphenyl sulfone are preferred as aromatic dihydroxy components, with 4,4' -dihydroxybiphenyl being particularly preferred as aromatic dihydroxy component.
In a particularly preferred embodiment, component (IB 1) consists of 4,4 '-dihydroxydiphenyl sulfone, 4' -dihydroxydiphenyl sulfone or a mixture of these compounds.
Component (IC)
Reaction mixture (R) GI ) Comprising at least one carbonate compound as component (IC). In this case, the term "at least one carbonate compound" is understood to mean exactly one carbonate compound and also a mixture of two or more carbonate compounds. The at least one carbonate compound is preferably at least one metal carbonate. The metal carbonate is preferably anhydrous. In this case, the term "at least one carbonate compound" and "component (IC)" are synonymously used and thus have the same meaning.
Alkali metal carbonates and/or alkaline earth metal carbonates are preferred as metal carbonates. At least one metal carbonate selected from sodium carbonate, potassium carbonate and calcium carbonate is particularly preferred as the metal carbonate. Potassium carbonate is most preferred.
For example, based on the reaction mixture (R GI ) The total weight of at least one carbonate component of (a), component (IC) comprises at least 50 wt%, more preferably at least 70 wt% and most preferably at least 90 wt% of potassium carbonate.
In a preferred embodiment, component (IC) consists of potassium carbonate. Potassium carbonate having a volume weighted average particle size of less than 200 μm is particularly preferred as potassium carbonate. The volume weighted average particle size of the potassium carbonate was determined using a particle size analyzer for a suspension of potassium carbonate in N-methylpyrrolidone. The amount of the metal carbonate, when expressed as alkali metal (M) per unit of hydroxyl (OH), is preferably in the range of 1.00 to 2.00.
Component (ID)
Reaction mixture (R) GI ) Preferably at least one aprotic polar solvent is included as component (ID). According to the invention, "at least one aprotic polar solvent" is understood to mean exactly one aprotic polar solvent and also a mixture of two or more aprotic polar solvents. In this case, the term "at least one aprotic polar solvent" and "component (ID)" are synonymously used and thus have the same meaning.
Suitable aprotic polar solvents are for example selected from anisole, dimethylformamide, dimethyl sulfoxide, sulfolane, N-methylpyrrolidone, N-ethylpyrrolidone and N-dimethylacetamide.
Preferably, component (ID) is selected from the group consisting of N-methylpyrrolidone, N-dimethylacetamide, dimethylsulfoxide and dimethylformamide. N-methylpyrrolidone is particularly preferred as component (ID).
Preferably, based on the reaction mixture (R GI ) The total weight of component (ID) comprising at least 50% by weight of at least one solvent selected from the group consisting of N-methylpyrrolidone, N-dimethylacetamide, dimethylsulfoxide and dimethylformamide. N-methylpyrrolidone is particularly preferred as component (ID).
In another preferred embodiment, component (ID) consists of N-methylpyrrolidone.
In a preferred embodiment, component (ID) consists of N-methylpyrrolidone. N-methylpyrrolidone is also known as NMP or N-methyl-2-pyrrolidone.
The non-sulfonated polyarylethersulfone polymer (P) used as component (I) preferably has a low polydispersity (Q) and a high glass transition temperature (T g ). In addition, the non-sulfonated poly (arylene ether sulfone) polymer (P) has very low amounts of impurities, for example, azeotroping agents such as toluene or chlorobenzene.
The non-sulfonated polyarylethersulfone polymer (P) generally has a polydispersity (Q) of 4.5 or less, preferably 4.0 or less.
Polydispersity (Q) is defined as weight average molecular weight (M W ) Divided by the number average molecular weight (M n ) Is a quotient of (1). In a preferred embodiment, the polydispersity (Q) of the non-sulfonated polyarylethersulfone polymer (P) is in the range of 2.0 to 4.5, preferably in the range of 2.0 to 4.0.
Weight average molecular weight (M) W ) Number average molecular weight (M) n ) Measured by gel permeation chromatography.
The polydispersity (Q) and average molecular weight of the non-sulfonated polyarylethersulfone polymer (P) are measured by Gel Permeation Chromatography (GPC) in dimethylacetamide (DMAc). The mobile phase (eluent) used was DMAc comprising 0.5 wt% lithium bromide. The concentration of the poly (arylene ether) polymer (P) (solution P) was 4 mg/ml of solution. After filtration (pore size 0.2 μm), 100. Mu.l of the solution was injected into the GPC system. The separation was performed using four different columns (heated to 80 ℃) (GRAM pre-column, GRAM 30A, GRAM 1000A, GRAM a; separation material: polyester copolymer ex. Pss). The GPC system was operated at a flow rate of 1 ml/min. DRI-Agilent 1100 was used as the detection system. PMMA standard ex.PSS has a molecular weight M in the range from 800 to 1,820 g/mol n Which is used for calibration.
Suitable non-sulfonated polyarylethersulfone polymers (P) generally have a weight average molecular weight (M) in the range of from 10 000 to 150 g/mol, preferably in the range of from 15 000 to 120 g/mol and particularly preferably in the range of from 20 000 to 90000g/mol W ). Weight average molecular weight (M) W ) Measured by Gel Permeation Chromatography (GPC). Measurements were made as described above.
Suitable non-sulphonated polyarylethersulphone polymers (P) generally have a glass transition temperature of from 185 ℃ to 250 ℃, preferably from 185 ℃ to 245 ℃, particularly preferably from 185 ℃ to 240 ℃.
Suitable non-sulfonated polyarylethersulfone polymers (P) generally have an elevated glass transition temperature (T g ). Glass transition temperature (T) was carried out in DSC 2000 (TA Instruments) at a heating rate of 20K/min g ) Is a measurement of (a). About 5mg of the substance was sealed in an aluminum crucible for measurement. In the first heating run, the sample was heated to 280 c,then rapidly cooled to-100 ℃ and then heated to 280 ℃ at 20K/min in a second heating run. Determining a corresponding T from the second heating operation g Values.
In another preferred embodiment, the thermoplastic molding composition comprises at least one non-sulfonated poly (arylene ether sulfone) polymer (P) having less than 0.05 weight percent OH-end groups, based on the number average weight (Mn) of the non-sulfonated poly (arylene ether sulfone) polymer (P). The amount of OH-end groups was determined by potentiometric titration using DMF as solvent.
Particularly preferred as component (I) are non-sulfonated polyarylether polymers (P) selected from Polyethersulfones (PESU), polyphenylsulfones (PPSU) and Polysulfones (PSU), with Polyethersulfones (PESU) and polyphenylsulfones (PPSU) being particularly preferred.
In one embodiment, the thermoplastic molding composition does not include Polysulfone (PSU).
In this case, the abbreviations PPSU, PESU and PSU are according to DIN EN ISO 1043-1:2001.
Component (II)
The thermoplastic molding composition comprises as component (II) at least one sulfonated poly (arylene sulfone) polymer (sP). In this case, the term "at least one sulfonated aromatic dihalogen sulfone polymer (sP)" and "component (II)" are used synonymously and thus have the same meaning.
The thermoplastic molding composition comprises from 1 to 10 weight percent of component (II) based on the total weight of the thermoplastic molding composition.
In this case, the term "at least one sulfonated poly (arylene sulfone) polymer (sP)" is understood to mean exactly one sulfonated poly (arylene sulfone) polymer (sP), and also a mixture of two or more sulfonated poly (arylene sulfone) polymers (sP).
The at least one sulfonated poly (arylene sulfone) polymer (sP) comprises 1mol% to 7.5mol% of sulfonated repeat units comprising at least one-SO 3 A Y group, wherein Y is hydrogen or a cationic equivalent, based on the total amount of at least one sulfonated poly (arylene sulfone) polymer (sP) contained in the thermoplastic molding composition.
In the context of the present invention, the total amount of the at least one sulfonated poly (arylene sulfone) polymer (sP) preferably refers to the total amount of repeating units and end groups contained in the at least one sulfonated poly (arylene sulfone) polymer (sP).
In the context of the present invention, "sulphonated" means that the sulphonated polyarylethersulphone polymer (sP) comprises groups resulting from sulphonation of aromatic dihalosulphones. Sulfonation of aromatic dihalogenated sulfones is known to those skilled in the art. In particular, "sulfonated" means that the sulfonated polyarylethersulfone polymer (sP) comprises a polymer comprising at least one-SO 3 The sulfonated repeat unit of the Y group, wherein Y is hydrogen or a cationic equivalent, is also referred to hereinafter as a sulfonated repeat unit.
In the context of the present invention, "cation equivalent" refers to one charge equivalent of a single positively charged cation or a cation having two or more positive charges, e.g., li + 、Na + 、K + 、Mg 2+ 、Ca 2+ 、NH 4 + Preferably Na + 、K + 。
In the context of the present invention, "at least one-SO 3 Y radical "means exactly one-SO 3 Y groups, and also refers to two or more-SO' s 3 And a Y group. Preferably exactly two-SO' s 3 And a Y group. This means that the sulphonated repeat units comprised in the at least one sulphonated polyarylethersulphone polymer (sP) preferably comprise two-SO 3 And a Y group.
In a preferred embodiment, the thermoplastic molding composition comprises from 1 to 10% by weight, more preferably from 1.5 to 9% by weight, most preferably from 2.5 to 8% by weight, based in each case on the total weight of the thermoplastic molding composition, of component (II).
The preparation of component (II) is known to the person skilled in the art. In a preferred embodiment, component (II) is prepared by a process comprising converting the reaction mixture (R GII ) The reaction mixture comprising as components (IIA 1) at least one non-sulfonated aromatic dihalogen sulfone, (IIA 2) at least one sulfonated aromatic dihalogen sulfone, (IIB 1) at least one aromatic dihydroxyA base compound, (IIC) at least one carbonate compound and (IID) at least one aprotic polar solvent.
Accordingly, a further object of the present invention is a thermoplastic molding composition in which component (II) is prepared by reaction of a reaction mixture (R GII ) Is prepared by the method of the step (a), the reaction mixture comprises as components
(IIA 1) based on the reaction mixture (R GII ) 90 to 99mol% of at least one non-sulphonated aromatic dihalogen sulphone, based on the sum of the mol% of components (IIA 1) and (IIA 2);
(IIA 2) based on the reaction mixture (R GII ) 1 to 10mol% of the sum of the mol% of components (IIA 1) and (IIA 2) contained therein, comprising at least one-SO 3 At least one sulfonated aromatic dihalogen sulfone of the Y group, wherein Y is hydrogen or a cationic equivalent;
(IIB 1) at least one aromatic dihydroxy compound;
(IIC) at least one carbonate compound;
(IID) at least one aprotic polar solvent.
GII Reaction mixture (R)
Preferably, the preparation of the sulfonated poly (arylene sulfone) polymer (sP) comprises converting the reaction mixture (R) comprising the above components (IIA 1), (IIA 2), (IIB 1), (IIC) and (IID) as step I) GII )。
Components (IIA 1), (IIA 2) and (IIB 1) take part in the polycondensation reaction.
Component (IID) acts as a solvent and component (IIC) acts as a base to deprotonate component (IIB 1) during the condensation reaction.
Reaction mixture (R) GII ) It is understood to mean the mixtures used in the process for preparing the sulfonated poly (arylene sulfone) polymers (sP). In this case, the reaction mixture (R GII ) All the details given thus relate to the mixture present before polycondensation. Polycondensation in the reaction mixture (R GII ) The polycondensation reaction of the components (IIA 1), (IIA 2) and (IIB 1) is carried out in the process of obtaining the target product sulfonated polyarylethersulfone polymer (sP). Obtained after polycondensation and comprising sulphonated poly(s)Mixtures of the desired products of the aryl ether sulfone polymers (sP) are also referred to as product mixtures (P) GII ). In addition, the product mixture (P GII ) Typically comprising at least one aprotic polar solvent (component (IID)) and a halide. In the reaction mixture (R GII ) Forms halides during the conversion of (a) to (b). First, component (IIC) reacts with component (IIB 1) during the conversion process, deprotonating component (IIB 1). The deprotonated component (IIB 1) is then reacted with components (IIA 1) and (IIA 2), wherein the halide is formed. This process is known to those skilled in the art.
Reaction mixture (R) GII ) The components of (a) are preferably reacted simultaneously. The components may be mixed and subsequently reacted in an upstream step. The components may also be fed into a reactor where they are mixed and then reacted.
In the process according to the invention, preferably in step I), the reaction mixture (R GII ) The components of (a) are preferably reacted simultaneously. The reaction is preferably carried out in one stage. This means that the deprotonation of component (IIB 1) and the condensation reaction between components (IIA 1), (IIA 2) and (IIB 1) takes place in a single reaction stage without isolation of intermediates, for example the deprotonated species of component (IIB 1).
The process according to step I) is preferably carried out according to the so-called "carbonate process". The process is preferably not carried out according to the so-called "hydroxide process". This means that the process according to the invention is not carried out in two stages for separating the phenoxide anions. Thus, in a preferred embodiment, the reaction mixture (R GII ) Substantially free of sodium hydroxide and potassium hydroxide. More preferably, the reaction mixture (R GII ) Substantially free of alkali metal hydroxides and alkaline earth metal hydroxides.
In this case, the term "substantially free" is understood to mean that the reaction mixture (R GII ) Is used as a reaction mixture (R) GI ) Including less than 100ppm, preferably less than 50ppm, of sodium hydroxide and potassium hydroxide, preferably alkali metal hydroxides and alkaline earth metal hydroxides.
Furthermore, preference is given toIs a reaction mixture (R GII ) Toluene or monochlorobenzene is not included. In particular, preference is given to reaction mixtures (R GII ) Excluding any material that forms an azeotrope with water.
The proportions of component (IIA 1), component (IIA 2) and component (IIB 1) result in principle from the stoichiometry of the polycondensation which is carried out with the theoretical elimination of hydrogen chloride and is established by the person skilled in the art in a manner known per se.
Preferably, the ratio of halogen end groups derived from component (IIA 1) and component (IIA 2) to phenol end groups derived from component (IIB 1) is regulated by controlled establishment of an excess of component (IIB 1) relative to component (IIA 1) and component (IIA 2) as starting compounds.
More preferably, the molar ratio of component (IIB 1) to components (IIA 1) and (IIA 2) is from 0.96 to 1.08, especially from 0.98 to 1.06, most preferably from 0.985 to 1.05.
For example, the reaction mixture (RGII) comprises 0.9mol to 0.99mol of component (IIA 1) and 0.01mol to 0.1mol of component (IIA 2) per 1mol of component (IIB 1).
Preferably, the conversion in the polycondensation reaction is at least 0.9.
Process step I) for preparing the non-sulfonated polyarylethersulfone polymers (P) is typically carried out under so-called "carbonate process" conditions. This means that the reaction mixture (R GII ) The reaction is carried out under so-called "carbonate process" conditions. The polycondensation reaction is generally carried out at a temperature in the range from 80℃to 250℃and preferably in the range from 100℃to 220 ℃. The upper limit of this temperature is determined by the boiling point of the at least one aprotic polar solvent (component (IID)) at standard pressure (1013.25 mbar). The reaction is usually carried out under standard pressure. The reaction is preferably carried out at time intervals in the range of 0.5 to 12 hours, in particular 1 to 10 hours.
Product mixture (P) GII ) In the process, the sulfonated poly (arylene sulfone) polymer (sP) obtained in the process may be isolated, for example, by reacting the product mixture (P GII ) Precipitation in water or a mixture of water and other solvents. The precipitated sulfonated poly (arylene sulfone) polymer (sP) may then be extracted with water and then dried. In one aspect of the inventionIn one embodiment, the precipitate may also be absorbed in an acidic medium. Suitable acids are, for example, organic or inorganic acids, for example carboxylic acids such as acetic acid, propionic acid, succinic acid or citric acid, and inorganic acids such as hydrochloric acid, sulfuric acid or phosphoric acid.
The product mixture (P) may be filtered after step I) GII ). Thereby, the halide can be removed.
The invention therefore also provides a method, wherein the method further comprises the steps of
II) filtering the product mixture (P) obtained in step I) GII )。
Component (IIA 1)
Reaction mixture (R) GII ) Comprising as component (IIA 1) at least one non-sulphonated aromatic dihalogen sulphone.
In this case, the term "at least one non-sulfonated aromatic dihalogen sulfone" is understood to mean exactly one non-sulfonated aromatic dihalogen sulfone and also a mixture of two or more non-sulfonated aromatic dihalogen sulfones. In this case, the term "at least one non-sulfonated aromatic dihalogen sulfone" and "component (IIA 1)" are used synonymously and thus have the same meaning.
Based on the reaction mixture (RG II ) The sum of the mol% of components (IIA 1) and (IIA 2) contained in the reaction mixture (R GII ) Preferably, from 90 to 99mol% of at least one non-sulphonated aromatic dihalogen sulphone is included as component (IIA 1). Preferably, based on the reaction mixture (R GII ) The sum of the mol% of components (IIA 1) and (IIA 2) contained in the reaction mixture (R GII ) Comprising as component (IIA 1) from 93 to 98.5mol%, most preferably from 93.5 to 98mol%, of at least one non-sulphonated aromatic dihalogen sulphone.
In view of component (IIA 1), the above applies accordingly to the description and the preferred requirements of component (IA 1). Components (IIA 1) and (IA 1) may be identical or different. In one embodiment, components (IIA 1) and (IA 1) are the same. In another embodiment, components (IIA 1) and (IA 1) are different.
Component (IIA 2)
In this case, the term "at least one non-sulfonated aromatic dihalogen sulfone" and "component (IIA 1)" are used synonymously and thus have the same meaning.
Based on the reaction mixture (RG II ) The sum of the mol% of components (IIA 1) and (IIA 2) contained in the reaction mixture (R GII ) Preferably, from 1 to 10mol% of at least one sulfonated aromatic dihalogenated sulfone is included as component (IIA 2). Preferably, based on the reaction mixture (R GII ) The sum of the mol% of components (IIA 1) and (IIA 2) contained in the reaction mixture (R GII ) Comprising as component (IIA 2) from 1.5mol% to 7mol%, most preferably from 2mol% to 6.5mol%, of at least one sulphonated aromatic dihalogenated sulphone.
In this case, the term "at least one sulfonated aromatic dihalogen sulfone" is understood to mean exactly one sulfonated aromatic dihalogen sulfone and also a mixture of two or more sulfonated aromatic dihalogen sulfones.
In the context of the present invention, "sulphonation" means that the sulphonated aromatic dihalogenated sulphone comprises at least one group resulting from sulphonation of the aromatic dihalogenated sulphone. Sulfonation of aromatic dihalogenated sulfones is known to those skilled in the art. In particular, "sulphonated" means that the aromatic dihalogenated sulphone comprises at least one-SO 3 And a Y group, wherein Y is hydrogen or a cationic equivalent.
In the context of the present invention, "cation equivalent" refers to one charge equivalent of a single positively charged cation or a cation having two or more positive charges, e.g., li + 、Na + 、K + 、Mg 2+ 、Ca 2+ 、NH 4 + Preferably Na + 、K + 。
In the context of the present invention, "at least one-SO 3 Y radical "means exactly one-SO 3 Y groups, and also refers to two or more-SO' s 3 And a Y group. Preferably exactly two-SO' s 3 And a Y group. This means that the at least one sulphonated aromatic dihalogen sulphone is preferably at least one disulphonated aromatic halogen sulphone.
Reaction mixture (R) GII ) The sum of the mol% of components (IIA 1) and (IIA 2) contained in (B) is generally 100mol%.
Preferably, component (IIA 2) comprises at least 50% by weight of at least one sulfonated aromatic dihalogen sulfone selected from
4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid;
4,4 '-difluorodiphenyl sulfone-3, 3' -disulfonic acid;
4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid disodium salt;
4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid dipotassium salt;
4,4 '-Difluorodiphenyl sulfone-3, 3' -disulfonic acid disodium salt
4,4 '-difluorodiphenyl sulfone-3, 3' -disulfonic acid dipotassium salt,
based on the total weight of component (IIA 2).
In a particularly preferred embodiment, the reaction mixture (R GII ) Component (IIA 2) comprises at least 80 wt%, preferably at least 90 wt%, more preferably at least 98 wt% of at least one sulfonated aromatic dihalogen sulfone selected from the group consisting of 4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid, 4 '-difluorodiphenyl sulfone-3, 3' -disulfonic acid, 4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid disodium salt, 4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid dipotassium salt, 4 '-difluorodiphenyl sulfone-3, 3' -disulfonic acid disodium salt and 4,4 '-difluorodiphenyl sulfone-3, 3' -disulfonic acid dipotassium salt.
Even more preferably, component (IIA 2) comprises at least 50% by weight of at least one sulfonated aromatic dihalogen sulfone selected from
4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid disodium salt;
4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid dipotassium salt;
4,4 '-Difluorodiphenyl sulfone-3, 3' -disulfonic acid disodium salt
4,4 '-difluorodiphenyl sulfone-3, 3' -disulfonic acid dipotassium salt,
based on the total weight of component (IIA 2).
In an even more particularly preferred embodiment, the reaction mixture (R GII ) The total weight of component (IIA 2) in (1) comprising at least 80 wt%, preferably at least 90 wt%, more preferably to98% by weight less of at least one sulfonated aromatic dihalogen sulfone selected from the group consisting of disodium 4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonate, dipotassium 4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonate, disodium 4,4 '-difluorodiphenyl sulfone-3, 3' -disulfonate and dipotassium 4,4 '-difluorodiphenyl sulfone-3, 3' -disulfonate.
In the context of component (IIA 2), the terms "sulfonic acid" and "-SO 3 The Y groups are used synonymously and have the same meaning. Thus, the term "sulfonic acid" in 4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid and 4,4 '-difluorodiphenyl sulfone-3, 3' -disulfonic acid means "-SO 3 A Y group ", wherein Y is hydrogen or a cationic equivalent.
4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid and disodium salt of 4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid are particularly preferred as component (IIA 2), with disodium salt of 4,4 '-dichlorodiphenyl sulfone-3, 3' -disulfonic acid being more preferred.
Component (IIC)
Reaction mixture (R) GII ) Comprising at least one carbonate compound as component (IIC). In this case, the term "at least one carbonate compound" is understood to mean exactly one carbonate compound and also a mixture of two or more carbonate compounds. The at least one carbonate compound is preferably at least one metal carbonate. The metal carbonate is preferably anhydrous. In this case, the terms "at least one carbonate compound" and "component (IIC)" are used synonymously and thus have the same meaning.
In view of component (IIC), the above applies accordingly to the description and the preferred requirements of component (IC). The components (IIC) and (IC) may be identical or different. In one embodiment, components (IIC) and (IC) are the same. In another embodiment, components (IIC) and (IC) are different. The amount of the metal carbonate, when expressed as alkali metal (M) per unit of hydroxyl (OH), is preferably in the range of 1.00 to 2.00.
Component (IID)
Reaction mixture (R) GII ) Preferably at least one aprotic polar solvent is included as component (IID). According to the invention"at least one aprotic polar solvent" is understood to mean exactly one aprotic polar solvent and also a mixture of two or more aprotic polar solvents. In this case, the term "at least one aprotic polar solvent" and "component (IID)" are used synonymously and thus have the same meaning.
In view of the component (IID), the above applies accordingly to the description and the preferred requirements of the component (ID). The components (IID) and (ID) may be the same or different. In one embodiment, components (IID) and (ID) are the same. In another embodiment, components (IID) and (ID) are different.
The sulfonated polyarylethersulfone polymer (sP) used as component (II) preferably has a low polydispersity (Q) and a high glass transition temperature (T g ). In addition, sulfonated poly (arylene sulfone) polymers (sPs) have very low amounts of impurities, for example, azeotroping agents such as toluene or chlorobenzene.
The sulfonated polyarylethersulfone polymers (sP) generally have a polydispersity (Q) of 4.5 or less, preferably 4.0 or less.
Polydispersity (Q) is defined as weight average molecular weight (M W ) Divided by the number average molecular weight (M n ) Is a quotient of (1). In a preferred embodiment, the sulfonated polyarylethersulfone polymer (sP) has a polydispersity (Q) in the range of 2.0 to 4.5, preferably in the range of 2.0 to 4.0.
Weight average molecular weight (M) W ) Number average molecular weight (M) n ) Measured by gel permeation chromatography, as described above for component (I).
Suitable sulfonated polyarylethersulfone polymers (sP) generally have a weight average molecular weight (M) in the range of from 10 000 to 150 g/mol, preferably in the range of from 15 000 to 120 g/mol and particularly preferably in the range of from 20 000 to 90000g/mol W ). Weight average molecular weight (M) W ) Measured by Gel Permeation Chromatography (GPC). Measurements were made as described above.
Suitable sulfonated polyarylethersulfone polymers (sPs) generally have a glass transition temperature of 185 ℃ to 255 ℃, preferably 185 ℃ to 250 ℃, particularly preferably 185 ℃ to 245 ℃.
Particularly preferred as component (I) are sulfonated polyarylether polymers (P) selected from the group consisting of sulfonated polyethersulfones (sPESU), sulfonated polyphenylsulfones (sPPSU) and sulfonated polysulfones (sPSU), with sulfonated polyethersulfones (sPESU) and sulfonated polyphenylsulfones (sPPSU) being particularly preferred.
In one embodiment, the thermoplastic molding composition does not include sulfonated polysulfone (sps u).
In this case, the abbreviations PPSU, PESU and PSU are according to DIN EN ISO 1043-1:2001.
Component (III)
The thermoplastic molding composition comprises as component (III) at least one fibrous and/or particulate filler. In this case, the term "at least one fibrous and/or particulate filler" and "component (III)" are used synonymously and thus have the same meaning.
The thermoplastic molding composition comprises from 4 to 70 weight percent of component (III), based on the total weight of the thermoplastic molding composition.
In this case, the term "at least one fiber and/or particulate filler" is understood to mean exactly one fiber and/or particulate filler and also a mixture of two or more fiber and/or particulate fillers.
In a preferred embodiment, the thermoplastic molding composition comprises from 8.5 to 60% by weight, more preferably from 12.5 to 50% by weight, most preferably from 17 to 45% by weight, based in each case on the total weight of the thermoplastic molding composition, of component (III).
In a preferred embodiment, the thermoplastic molding composition comprises as component (III) at least one fibrous filler selected from the group consisting of carbon fibers, potassium titanate whiskers, aramid fibers and glass fibers and/or at least one particulate filler selected from the group consisting of amorphous silica, magnesium carbonate, chalk, quartz powder, mica, clay, white mica, biotite, su Zuodan (suzoite), tin maleate, talc, chlorite, phlogopite, feldspar, wollastonite and kaolin.
Component (IV)
In one embodiment, the thermoplastic molding composition may include at least one additive as component (IV). In each case, the further component (IV) is generally present in the range from 0% to 40% by weight, preferably from 0% to 30% by weight, particularly preferably from 0% to 20% by weight, based on the total weight of the thermoplastic molding composition.
Component (IV) is preferably at least one additive selected from the group consisting of processing aids, pigments, stabilizers, flame retardants, impact modifiers or mixtures thereof. Common materials such as heat stabilizers, UV stabilizers, lubricants, pigments and dyes may be utilized. In each case, component IV may be present in an amount of from 0 to 40% by weight, preferably from 0 to 25% by weight, based on the total weight of the thermoplastic molding composition.
The pigments are generally used in amounts of from 0% to 6% by weight, preferably from 0% to 5% by weight. Pigments for coloring thermoplastic materials are generally known and may be at R.And H.M muller, taschenbuch der Kunststoffadditive, carl Hanser Verlag. As a preferred pigment, zinc oxide or titanium oxide can be used. Furthermore, carbon black can be used as pigment (see G.Benzing, "pigment f ur Anstrichmititel", expert Verlag (1988) page 78). To produce other colors, chromium-based pigments or organic pigments may be utilized.
As heat stabilizers, well known additives such as sterically hindered phenols or secondary amines may be used. Benzotriazole, benzophenone, or other known UV stabilizers may be used for UV protection.
As lubricants or mould release agents, it is possible to use stearyl alcohol, stearic acid, stearates or amides or esters of pentaerythritol. Preferably, stearic acid may be used.
Methods for preparing thermoplastic molding compositions are known to those skilled in the art. For the preparation of the thermoplastic molding compositions, components (I), (II) and (III) and optionally (IV) are generally mixed.
For the preparation of the thermoplastic molding compositions, the components may be dry-blended or compounded, for example, in the melt in a compounding unit. Preferably, the components used to prepare the thermoplastic molding composition are compounded in an extruder, preferably a twin screw extruder. The melt temperature in the barrel is preferably maintained below 400 ℃, more preferably below 380 ℃.
The invention is further illustrated by the following working examples, but is not limited thereto.
Examples
The components used
Component I
Component I1
As component I1, polyethersulfone (PESU) having a viscosity number of 49.0ml/g was used. The product used had 0.19% by weight of Cl-end groups (elemental analysis) and 0.23% by weight of OCH 3-end groups [ (] 1 H-NMR). The quantity of OH-end groups is lower than the detection limit<0.02 wt%).
Component I2
As component I2, polyphenylsulfone (PPSU) having a viscosity number of 59.0ml/g was used. The amount of OH-end groups was below the detection limit (< 0.02 wt%).
Component II
Component II1
The preparation of sulfonated PESU (sps) was performed according to the following procedure:
562.83g (1.960 mol) of 4,4 '-dichlorodiphenyl sulfone (DCDPS), 24.56g (0.05 mol) of disodium 3,3' -disulfonate-4, 4 '-dichlorodiphenyl sulfone (sDCDPS), 500.34g (2, 00 mol) of 4,4' -dihydroxydiphenyl sulfone (DHDPS) and 304.062g (2.20 mol) of potassium carbonate (particle size 39,3 μm) are suspended in 1050ml of NMP under a nitrogen atmosphere in a 4l HWS vessel with stirrer, dean-Stark trap, nitrogen inlet and temperature control. The mixture was heated to 190 ℃ with stirring. The mixture was purged with 30L/h nitrogen and the mixture was maintained at 190℃for 9h. Thereafter, 1950ml NMP was added to cool the mixture. The mixture was cooled to below 60 ℃ under nitrogen. After filtration, the polymer solution was precipitated in water. The precipitated product was extracted with hot water (20 hours at 85 ℃) and dried under reduced pressure at 120℃for 24 hours.
The viscosity number (V.N.) of the product was 62.0ml/g, and the amount of sDCDPS units introduced was 2mol% ("G") 1 H-NMR)。
Component II2
545.60g (1.90 mol) of 4,4 '-dichlorodiphenyl sulfone (DCDPS), 49.12g (0.10 mol) of disodium 3,3' -disulfonate-4, 4 '-dichlorodiphenyl sulfone (sDCDPS), 500.34g (2, 00 mol) of 4,4' -dihydroxydiphenyl sulfone (DHDPS) and 304.062g (2.20 mol) of potassium carbonate (particle size 39,3 μm) are suspended in 1050ml of NMP under a nitrogen atmosphere in a 4l HWS vessel with stirrer, dean-Stark trap, nitrogen inlet and temperature control. The mixture was heated to 190 ℃ with stirring. The mixture was purged with 30L/h nitrogen and the mixture was maintained at 190℃for 9.5h. Thereafter, 1950ml NMP was added to cool the mixture. The mixture was cooled to below 60 ℃ under nitrogen. After filtration, the polymer solution was precipitated in water. The precipitated product was extracted with hot water (20 hours at 85 ℃) and dried under reduced pressure at 120℃for 24 hours.
The V.N. of the product was 64.1ml/g, and the amount of sDCDPS units introduced was 3.9mol% ( 1 H-NMR)。
Component II3
The preparation of sulfonated PPSU (spsu) was performed according to the following procedure:
516.88g (1.80 mol) of 4,4 '-dichlorodiphenyl sulfone (DCDPS), 98.25g (0.20 mol) of disodium 3,3' -disulfonate-4, 4 '-dichlorodiphenyl sulfone (sDCDPS), 372.42g (2, 00 mol) of 4,4' -Dihydroxybiphenyl (DHBP) and 304.06g (2.20 mol) of potassium carbonate (particle size 37.5 μm) are suspended in 1250ml of NMP under a nitrogen atmosphere in a 4l HWS vessel with stirrer, dean-Stark trap, nitrogen inlet and temperature control. The mixture was heated to 190 ℃ with stirring. The mixture was purged with 30L/h nitrogen and the mixture was maintained at 190℃for 6h. Thereafter, 1750ml of NMP was added to cool the mixture. The mixture was cooled to below 60 ℃ under nitrogen 6. After filtration, the polymer solution was precipitated in water. The precipitated product was extracted with hot water (20 hours at 85 ℃) and dried under reduced pressure at 120℃for 24 hours.
The V.N. of the product was 63.4ml/g based on sDCDThe amount of PS units was 6.5mol% (by 1 H-NMR measurement).
Component II4
The preparation of sulfonated PPSU (spsu) was performed according to the following procedure:
574.34g (2.00 mol) of 4,4 '-dichlorodiphenyl sulfone (DCDPS), 24.56g (0.05 mol) of disodium 3,3' -disulfonate-4, 4 '-dichlorodiphenyl sulfone (sDCDPS), 372.42g (2, 00 mol) of 4,4' -Dihydroxybiphenyl (DHBP) and 293.0g (2.12 mol) of potassium carbonate (particle size 37.5 μm) are suspended in 1250ml of NMP under a nitrogen atmosphere in a 4l HWS vessel with stirrer, dean-Stark trap, nitrogen inlet and temperature control. The mixture was heated to 190 ℃ with stirring. The mixture was purged with 30L/h nitrogen and the mixture was maintained at 190℃for 6h. Thereafter, 1750ml of NMP was added to cool the mixture. The mixture was cooled to below 60 ℃ under nitrogen. After filtration, the polymer solution was precipitated in water. The precipitated product was extracted with hot water (20 hours at 85 ℃) and dried under reduced pressure at 120℃for 24 hours.
The V.N. of the product was 75.4ml/g, the amount of units based on sDCDPS was 1.9mol% (by 1 H-NMR measurement).
Component IIV1
The preparation of sulfonated PPSU (spsu) was performed according to the following procedure:
488.19g (1.70 mol) of 4,4 '-dichlorodiphenyl sulfone (DCDPS), 148.56g (0.30 mol) of disodium 3,3' -disulfonate-4, 4 '-dichlorodiphenyl sulfone (sDCDPS), 372.42g (2, 00 mol) of 4,4' -Dihydroxybiphenyl (DHBP) and 317.88g (2.30 mol) of potassium carbonate (particle size 37.5 μm) are suspended in 1250ml of NMP under a nitrogen atmosphere in a 4l HWS vessel with stirrer, dean-Stark trap, nitrogen inlet and temperature control. The mixture was heated to 190 ℃ with stirring. The mixture was purged with 30L/h nitrogen and the mixture was maintained at 190℃for 7.5h. Thereafter, 1750ml of NMP was added to cool the mixture. The mixture was cooled to below 60 ℃ under nitrogen. After filtration, the polymer solution 7 was precipitated in water. The precipitated product was extracted with hot water (20 hours at 85 ℃) and dried under reduced pressure at 120℃for 24 hours.
The V.N. of the product was 61.1ml/g,the amount of units based on sDCDPS was 11.2mol% (by 1 H-NMR measurement).
Component IIV2
The preparation of OH-terminated PESU (PESU-OH) was performed according to the following procedure:
278.27g (0, 969 mol) of 4,4 '-dichlorodiphenyl sulfone (DCDPS), 250,17g (1, 00 mol) of 4,4' -dihydroxydiphenyl sulfone (DHDPS) and 152,03g (1, 10 mol) of potassium carbonate (particle size 39,3 μm) were suspended in 1000ml of NMP under a nitrogen atmosphere in a 4l HWS vessel with stirrer, dean-Stark trap, nitrogen inlet and temperature control. The mixture was heated to 190 ℃ with stirring. The mixture was purged with 30L/h nitrogen and the mixture was maintained at 190℃for 6h. Thereafter, 500ml of NMP was added to cool the mixture. The mixture was cooled to below 60 ℃ under nitrogen. After filtration, the polymer solution was precipitated in water. The precipitated product was extracted with hot water (20 hours at 85 ℃) and dried under reduced pressure at 120℃for 24 hours.
The V.N. of the product was 48.3ml/g and the amount of OH-end groups was 0.22% by weight (determined by potentiometric titration).
Component IIV3
Preparation of carboxyl-functionalized PPSU according to the following procedure and according to EP 855430 (PPSU-co DPA):
585.81g (2.04 mol) of 4,4 '-dichlorodiphenyl sulfone (DCDPS), 42.95g (0.15 mol) of diphenoxypentanoic acid (DPA), 344.49g (1, 70 mol) of 4,4' -dihydroxybiphenyl (DHDP) and 310.97g (2.25 mol) of potassium carbonate (particle size 39,3 μm) are suspended in 1538ml of NMP under a nitrogen atmosphere in a 4l HWS vessel with stirrer, dean-Stark trap, nitrogen inlet and temperature control. The mixture was heated to 190 ℃ with stirring. The mixture was purged with 30L/h nitrogen and the mixture was maintained at 190℃for 6h. Thereafter, 1462ml of NMP was added to cool the mixture. The mixture was cooled to below 60 ℃ under nitrogen. After filtration, the polymer solution was precipitated in water. The precipitated product was extracted with hot water (20 hours at 85 ℃) and dried under reduced pressure at 120℃for 24 hours.
The V.N. of the product was 48.3ml/g, the amount of units based on DPA was 6.2mol% (by 1 H-NMR measurement).
Component III
Glass fibers, chopped strands (length 4,5 mm) with a diameter of 10 μm and PU-based compounds.
The viscosity number (v.n.) is preferably determined using an unobscured viscometer at 25 ℃ at a concentration of 1g polymer in 100ml NMP.
The amount of OH end groups was determined by potentiometric titration using DMF as solvent.
Preparation/testing of thermoplastic moulding compositions
Compounding was performed using a twin screw extruder (ZSK 18), the barrel temperature was set to maintain the melt temperature below 400 ℃. The molding of the test specimens was carried out at a melt temperature of 360℃and a mold temperature of 140 ℃. Tensile testing was performed according to ISO 527 (E-modulus, strength, tensile elongation).
Impact strength was tested according to ISO 179 1 eu. The melt flow of the product was tested according to ISO 1133 at a melt temperature of 360 ℃ and a load of 10 kg.
The tensile bars were stored at 200℃for 500 hours and then subjected to tensile testing.
By passing through 1 H-NMR determination of the content of units derived from sulfonated monomer (sDCDPS) and DPA.
The color of the tensile bars was evaluated after aging and divided into three categories: 0 is unchanged; 1 defect (bubble, …) 2 decoloration.
TABLE 1:
Examples | V1 | 2 | 3 | V4 | 5 | 6 | V7 | V8 | V9 |
I1(PESU) | 70 | 65 | 65 | - | - | - | - | 65 | - |
I2(PPSU) | - | - | - | 70 | 65 | 65 | 65 | - | 65 |
II1(sPESU) | - | 5 | - | - | - | - | - | - | - |
II2(sPESU) | - | - | 5 | - | - | - | - | - | - |
II3(sPPSU) | - | - | - | - | 5 | - | - | - | - |
II4(sPPSU) | - | - | - | - | - | 5 | - | - | - |
IIV1(sPPSU) | - | - | - | - | - | - | 5 | - | - |
IIV2(PESU-OH) | - | - | - | - | - | - | - | 5 | - |
IIV3(PPSU-DPA) | - | - | - | - | - | - | - | - | 5 |
III(GF) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
ISO 179 1eU[kJ/m 2 ] | 56 | 69 | 73 | 39 | 68 | 71 | 56 | 60 | 65 |
E-modulus [ GPa ]] | 9.5 | 9.4 | 9.5 | 8.9 | 9.0 | 9.0 | 8.7 | 9.5 | 8.9 |
Breaking strength [ MPa ]] | 148 | 153 | 154 | 133 | 139 | 143 | 117 | 151 | 144 |
Elongation at break [%] | 2.7 | 3.2 | 3.1 | 2.3 | 3.0 | 3.2 | 1.8 | 2.9 | 3.1 |
MVR[ml/10min] | 59 | 52 | 51 | 28 | 24 | 26 | 29 | 54 | 23 |
Strength of annealed fracture [ MPa ]] | 131 | 139 | 143 | 127 | 134 | 140 | 106 | 122 | 119 |
Elongation at break after annealing [%] | 2.1 | 2.7 | 2.9 | 1.9 | 2.8 | 3.0 | 1.5 | 2.2 | 2.1 |
Appearance after aging | 2 | 0 | 0 | 1 | 0 | 0 | 1,2 | 2 | 2 |
The thermoplastic molding compositions according to the invention exhibit excellent mechanical properties and surprisingly an optimal retention of tensile properties after sufficient annealing.
Claims (15)
1. A thermoplastic molding composition comprising as component (I) from 25 to 95 wt% of at least one non-sulfonated polyarylethersulfone polymer (P);
(II) from 1 to 10% by weight of at least one sulfonated poly (arylene sulfone) polymer (sP) having from 1 to 7.5mol% of sulfonated repeat units comprising at least one-SO 3 A Y group, wherein Y is hydrogen or a cationic equivalent, based on the total amount of at least one sulfonated poly (arylene sulfone) polymer (sP) contained in the thermoplastic molding composition;
(III) 4 to 70% by weight of at least one fibrous and/or particulate filler
Wherein the weight% value in each case is based on the total weight of the thermoplastic molding composition.
2. Thermoplastic molding composition according to claim 1, wherein component (I) is prepared by a process comprising converting the reaction mixture (R GI ) The reaction mixture comprising as component (IA 1) at least one non-sulfonated aromatic dihalogen sulfone;
(IB 1) at least one aromatic dihydroxy compound;
(IC) at least one carbonate compound;
(ID) at least one aprotic polar solvent.
3. Thermoplastic molding composition according to claim 1 or 2, wherein component (II) is prepared by a process comprising converting the reaction mixture (R GII ) The reaction mixture comprising (IIA 1) as component (R) based on the reaction mixture (R) GII ) 90 to 99mol% of at least one non-sulphonated aromatic dihalogen sulphone, based on the sum of the mol% of components (IIA 1) and (IIA 2);
(IIA 2) based on the reaction mixture (R) GII ) 1 to 10mol% of the sum of the mol% of components (IIA 1) and (IIA 2) contained therein, comprising at least one-SO 3 At least one sulfonated aromatic dihalogen sulfone of the Y group, wherein Y is hydrogen or a cationic equivalent;
(IIB 1) at least one aromatic dihydroxy compound;
(IIC) at least one carbonate compound;
(IID) at least one aprotic polar solvent.
4. A thermoplastic molding composition as claimed in claim 2 or 3, wherein the reaction mixture (R GI ) Component (IA 1) comprising at least 50% by weight of one or more non-components selected from the group consisting of 4,4 '-dichlorodiphenyl sulfone and 4,4' -difluorodiphenyl sulfone, based on the total weight of component (IA 1) Sulfonated aromatic dihalogenated sulfones.
5. Thermoplastic molding composition according to claim 2 to 4, wherein the reaction mixture (R GII ) Component (IIA 1) comprising at least 50% by weight of one or more non-sulphonated aromatic dihalogensulfones selected from the group consisting of 4,4 '-dichlorodiphenyl sulfone and 4,4' -difluorodiphenyl sulfone, based on the total weight of component (IIA 1).
6. Thermoplastic molding composition according to claim 3 to 5, wherein the reaction mixture (R GII ) Component (IIA 2) comprising at least 50% by weight of one or more sulphonated aromatic dihalogens selected from the group consisting of disulphonated 4,4 '-dichlorodiphenyl sulphone and disulphonated 4,4' -difluorodiphenyl sulphone, based on the total weight of component (IIA 2).
7. Thermoplastic molding composition according to claim 2 to 6, wherein the reaction mixture (R GI ) Component (IB 1) comprises at least 50% by weight of one or more aromatic dihydroxy compounds selected from the group consisting of 4,4 '-dihydroxydiphenyl sulfone, 4' -dihydroxybiphenyl and bisphenol a, based on the total weight of component (IB 1).
8. Thermoplastic molding composition according to claim 3 to 7, wherein the reaction mixture (R GII ) Component (IIB 1) comprises at least 50% by weight of one or more aromatic dihydroxy compounds selected from the group consisting of 4,4 '-dihydroxydiphenyl sulfone, 4' -dihydroxybiphenyl and bisphenol a, based on the total weight of component (IIB 1).
9. Thermoplastic molding composition according to any of claims 1 to 8, wherein the polymer (P) is based on the number average weight (M n ) The at least one non-sulfonated polyarylethersulfone polymer (P) has less than 0.05 wt% OH-end groups.
10. Thermoplastic molding composition according to any of claims 2 to 9Wherein based on the reaction mixture (R GI ) The total weight of the components (IC) contained therein and/or based on the reaction mixture (R) GII ) Component (IC) and/or component (IIC) comprises at least 50% by weight of potassium carbonate, based on the total weight of component (IIC).
11. The thermoplastic molding composition according to any of claims 2 to 10, wherein component (ID) and/or component (IID) is at least one aprotic polar solvent selected from anisole, dimethylformamide, dimethylsulfoxide, sulfolane, N-dimethylacetamide, N-methyl-2-pyrrolidone and N-ethyl-2-pyrrolidone.
12. The thermoplastic molding composition according to any of claims 1 to 11, wherein component (III) is at least one fibrous filler selected from carbon fibers, potassium titanate whiskers, aramid fibers and glass fibers and/or at least one particulate filler selected from amorphous silica, magnesium carbonate, chalk, quartz powder, mica, clay, muscovite, biotite, su Zuodan, tin maleate, talc, chlorite, phlogopite, feldspar, wollastonite and kaolin.
13. The thermoplastic molding composition of any one of claims 1 to 12 wherein in component (II), Y is a cationic equivalent.
14. A method of manufacturing a molded article using the thermoplastic molding composition of any one of claims 1 to 13.
15. A molded article obtained by the method according to claim 14.
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DE3330154A1 (en) | 1983-08-20 | 1985-03-07 | Basf Ag, 6700 Ludwigshafen | METHOD FOR PRODUCING POLYETHERS |
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DE19702590A1 (en) | 1997-01-24 | 1998-07-30 | Basf Ag | Thermoplastic molding compounds |
US20040259446A1 (en) * | 2003-06-20 | 2004-12-23 | Jain Mukesh K. | Chemical protective articles of apparel and enclosures |
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US9199205B2 (en) * | 2012-04-20 | 2015-12-01 | Basf Se | Ultrafiltration membranes fabricated from sulfonated polyphenylenesulfones |
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